CVE-2026-32603— Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process
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I. Basic Information for CVE-2026-32603
Vulnerability Information
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Vulnerability Title
Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sandboxie is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, a local denial of service vulnerability exists in the Sandboxie kernel driver. An unprivileged process running inside a Standard Sandbox can send a malformed IOCTL to the \Device\SandboxieDriverApi driver, triggering an immediate kernel crash (BSOD). The vulnerability affects the Standard Sandbox configuration both with and without dropped administrator privileges, but does not affect the Security Hardened Sandbox configuration. This issue has been fixed in version 1.17.3. Users who cannot update can use the Security Hardened Sandbox configuration as a workaround.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sandboxie 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sandboxie是sandboxie-plus开源的一款基于沙盒的隔离软件。 Sandboxie 1.17.2及之前版本存在输入验证错误漏洞，该漏洞源于内核驱动中未授权进程发送畸形IOCTL，可能导致本地拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| sandboxie-plus | Sandboxie | < 1.17.3 | - |
II. Public POCs for CVE-2026-32603
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · sandboxie-plus · 2026-05-05 · 8 CVEs total
| CVE-2026-34596 | Sandboxie-Plus local privilege escalation via TOCTOU race condition in UpdUtil addon insta | |
| CVE-2026-34462 | Sandboxie-Plus ProcessServer boxname stack buffer overflows via unterminated wide string c | |
| CVE-2026-34458 | Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly | |
| CVE-2026-34527 | Sandboxie-Plus EditPassword hash entropy reduced from 160 bits to 80 bits due to incorrect | |
| CVE-2026-34459 | Sandboxie-Plus sandbox escape via uninitialized memory leak and stack overflow in GetRawIn | |
| CVE-2026-34464 | Sandboxie-Plus NamedPipeServer OpenHandler stack overflow via unterminated server field | |
| CVE-2026-34461 | Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overflow allows local privilege esca |
IV. Related Vulnerabilities
Same product: Sandboxie
- CVE-2026-34596
Sandboxie-Plus local privilege escalation via TOCTOU race co - CVE-2026-34527
Sandboxie-Plus EditPassword hash entropy reduced from 160 bi - CVE-2026-34464
Sandboxie-Plus NamedPipeServer OpenHandler stack overflow vi - CVE-2026-34462
Sandboxie-Plus ProcessServer boxname stack buffer overflows - CVE-2026-34461
Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overfl
Same vendor: sandboxie-plus
- CVE-2026-34596
Sandboxie-Plus local privilege escalation via TOCTOU race co - CVE-2026-34527
Sandboxie-Plus EditPassword hash entropy reduced from 160 bi - CVE-2026-34464
Sandboxie-Plus NamedPipeServer OpenHandler stack overflow vi - CVE-2026-34462
Sandboxie-Plus ProcessServer boxname stack buffer overflows - CVE-2026-34461
Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overfl
Same weakness: CWE-20
V. Comments for CVE-2026-32603
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